Add script reading bootloader flags
[pub/lufa.git] / Demos / Host / LowLevel / GenericHIDHost / GenericHIDHost.c
index 671fa48..23512a1 100644 (file)
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2011.
+     Copyright (C) Dean Camera, 2021.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2021  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -18,7 +18,7 @@
   advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
-  The author disclaim all warranties with regard to this
+  The author disclaims all warranties with regard to this
   software, including all implied warranties of merchantability
   and fitness.  In no event shall the author be liable for any
   special, indirect or consequential damages or any damages
@@ -46,11 +46,12 @@ int main(void)
        puts_P(PSTR(ESC_FG_CYAN "Generic HID Host Demo running.\r\n" ESC_FG_WHITE));
 
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-       sei();
+       GlobalInterruptEnable();
 
        for (;;)
        {
-               HID_Host_Task();
+               ReadNextReport();
+
                USB_USBTask();
        }
 }
@@ -58,12 +59,14 @@ int main(void)
 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 void SetupHardware(void)
 {
+#if (ARCH == ARCH_AVR8)
        /* Disable watchdog if enabled by bootloader/fuses */
        MCUSR &= ~(1 << WDRF);
        wdt_disable();
 
        /* Disable clock division */
        clock_prescale_set(clock_div_1);
+#endif
 
        /* Hardware Initialization */
        Serial_Init(9600, false);
@@ -97,6 +100,35 @@ void EVENT_USB_Host_DeviceUnattached(void)
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 {
+       puts_P(PSTR("Getting Config Data.\r\n"));
+
+       uint8_t ErrorCode;
+
+       /* Get and process the configuration descriptor data */
+       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
+       {
+               if (ErrorCode == ControlError)
+                 puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
+               else
+                 puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
+
+               printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
+       {
+               printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
+                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       puts_P(PSTR("HID Device Enumerated.\r\n"));
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
 }
 
@@ -131,6 +163,9 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
  */
 void ReadNextReport(void)
 {
+       if (USB_HostState != HOST_STATE_Configured)
+         return;
+
        /* Select and unfreeze HID data IN pipe */
        Pipe_SelectPipe(HID_DATA_IN_PIPE);
        Pipe_Unfreeze();
@@ -178,6 +213,9 @@ void WriteNextReport(uint8_t* ReportOUTData,
                      const uint8_t ReportType,
                      uint16_t ReportLength)
 {
+       if (USB_HostState != HOST_STATE_Configured)
+         return;
+
        /* Select the HID data OUT pipe */
        Pipe_SelectPipe(HID_DATA_OUT_PIPE);
 
@@ -229,59 +267,3 @@ void WriteNextReport(uint8_t* ReportOUTData,
        }
 }
 
-/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
- *  HID reports from the device and to send reports if desired.
- */
-void HID_Host_Task(void)
-{
-       uint8_t ErrorCode;
-
-       /* Switch to determine what user-application handled host state the host state machine is in */
-       switch (USB_HostState)
-       {
-               case HOST_STATE_Addressed:
-                       puts_P(PSTR("Getting Config Data.\r\n"));
-
-                       /* Get and process the configuration descriptor data */
-                       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
-                       {
-                               if (ErrorCode == ControlError)
-                                 puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
-                               else
-                                 puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
-
-                               printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
-                       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
-                       {
-                               printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
-                                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       puts_P(PSTR("HID Device Enumerated.\r\n"));
-
-                       USB_HostState = HOST_STATE_Configured;
-                       break;
-               case HOST_STATE_Configured:
-                       ReadNextReport();
-
-                       break;
-       }
-}
-